Slow to go to Favourites

[dasymington]

I use the Favourites feature in UR a lot, but one of them takes about 2 minutes to open the required item. The structure is My Data > Imported Items > Documents at Home > email. I can get to the email folder (whick contains over 2000) items without any delays by clicking on each of the items in the Data Explorer tree; however, if I use the Favourite keyboard shortcut or choose the email item from the Favourites menu, as I said, it takes about 2 minutes to open the folder - which somewhat defeats the purpose of having a Favourite.

Is there anything I can do to speed up the operation of the Favourite selection?